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1、Disability-TheComputerHereareafewwordsbyProfessorHawkingabouthiscomputersystem.CommunicationsystemIcommunicatewithacomputersystem.IhavealwaysusedIBMcompatiblecomputers,onmywheelchair.Theyrunfrombatteriesunderthewheelchair,althoughaninternalbatterywillkeepthecomputerrunningforanhourifnecessary.Thesc
2、reenismountedonthearmofthewheelchairwhereIcanseeit,morerecentsystemshavethewholecomputerinaboxonthisarm.TheoriginalsystemswereputtogetherformebyDavidMason,ofCambridgeAdaptiveCommunications.Thiscompanymanufactureandsupplyavarietyofproductstohelppeoplewithcommunicationproblemsexpressthemselves.Recent
3、ly,IntelengineersdesignedanewcomputerformepoweredbyaPentiumIIprocessor,whichInowuse.Onthecomputer,IrunaprogramcalledEqualizer?,writtenbyacompanycalledWordsPlusinc.Acursormovesacrosstheupperpartofthescreen.Icanstopitbypressingaswitchinmyhand.Thisswitchismyonlyinterfacewiththecomputer.InthiswayIcanse
4、lectwords,whichareprintedonthelowerpartofthescreen.WhenIhavebuiltupasentence,Icansendittoaspeechsynthesizer.Iuseaseparatesynthesizer,madebySpeech+.ItisthebestIhaveheard,thoughitgivesmeanaccentthathasbeendescribedvariouslyasScandinavian,AmericanorScottish.IalsocanuseWindows98throughaninterfacecalled
5、EZKeys,againmadebyWordsPlus.Iamabletocontrolthemousewiththeswitchthroughcleverlyselectedprocessfromasmallboxshownonthedesktop.Icanalsowritetextusingsimilarmenu'stothoseinEqualizer.IcansavewhatIwritetodisk.IwritepapersusingaformattingprogramcalledTEX.Icanwriteequationsinwords,andtheprogramtranslates
6、themintosymbols,andprintsthemoutonpaperintheappropriatetype.Icanalsogivelectures.Iwritethelecturebeforehand,andsaveitondisk.Icanthensendittothespeechsynthesiser,asentenceatatime.Itworksquitewell,andIcantryoutthelecture,andpolishit,beforeIgiveit.StephenHawkingRecentImprovementsProfessorHawkingisdete
7、rminedthatheisabletokeepupwiththerecentimprovementsincomputerandcommunicationtechnology.Belowaresomeoftherecentimprovements,whichhavebeencarriedoutonthesystemwithinthelast12months.LatestPentiumchipInNovembe
